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SN74LS166AD - Texas Instruments

Description: Texas Instruments SN74LS166AD, 8-stage, Shift Register, Serial to Serial/Parallel, 5V, 16-Pin SOIC

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SN74LS166AD - Texas Instruments PCB footprint - Other - Other - SOIC127P600X175-16N
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SN74LS166AD - Texas Instruments  - 3D model - Other - SOIC127P600X175-16N
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SN74LS166AD Details

  • Manufacturer Part Number:

    SN74LS166AD

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Pin Count:

    16

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    CLOCK INHIBIT

  • Count Direction:

    RIGHT

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    9.9 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    PARALLEL IN SERIAL OUT

  • Max Frequency@Nom-Sup:

    25000000 Hz

  • Max I(ol):

    0.008 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    32 mA

  • Prop. Delay@Nom-Sup:

    25 ns

  • Propagation Delay (tpd):

    25 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • Seated Height-Max:

    1.75 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Trigger Type:

    POSITIVE EDGE

  • Width:

    3.9 mm

  • fmax-Min:

    25 MHz

SN74LS166AD Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN74LS166AD is 2.5 MHz, but it can vary depending on the operating voltage and temperature. It's recommended to check the timing characteristics in the datasheet for specific frequency limits.
  • To ensure proper power and decoupling, connect the VCC pin to a stable 5V power supply, and decouple the power supply lines with 0.1uF ceramic capacitors. Additionally, use a 10uF electrolytic capacitor to filter out any noise or ripple on the power supply lines.
  • The maximum input voltage of the SN74LS166AD is 5.5V, but it's recommended to keep the input voltage within the recommended operating range of 4.75V to 5.25V to ensure reliable operation.
  • The asynchronous clear (CLR) input should be tied to VCC through a pull-up resistor (e.g., 1kΩ) to prevent accidental clearing of the counter. When CLR is low, the counter is reset to zero, regardless of the clock input.
  • The propagation delay time of the SN74LS166AD is typically around 20-30 ns, but it can vary depending on the operating voltage and temperature. Check the datasheet for specific timing characteristics.

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SN74LS166AD Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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